<?php 
  //variables por valor
 
    $a = 1;
    $b = 2;
    $c = 3;
    echo "a:$a , b:$b , c:$c\n";

//comentarios multiples

    $a = $b;
    echo "a:$a , b:$b , c:$c\n";

    //Cuanto tiene que valer $a?
    $b = 8;
    echo "a:$a , b:$b , c:$c\n";

    //que pasa aca??
    $a = "hola"+3;
    echo "a:$a , b:$b , c:$c\n";

?>


